It sounds like last weeks session was just very emotionally daunting for you; is it possible you were talking about some heavy things?

I also think that it is not unusual but very good that you recognize that you have a need that you don't always point out needs to be fulfilled. Perhaps that could be something to mention to her and try to work on? I've had to come to terms that my T doesn't have a crystal ball either (sucks doesn't it) but it does help you in the long run, with other relationships, to be more aware that other people can not always read our minds (probably even less than T).

Maybe she brought up the older session topic because she realized that per your reaction, you maybe weren't quite ready to address those subjects that were broached before.

I have had multiple sessions in which I can not remember things that we have discussed or but maybe two sentences from the whole session. Sometimes I remember actions (sigh, her looking to the left) but I have no idea what that means. T knows this and will sometimes question me on just how much I remember.

I bet she did actually remember the subject and just thought that maybe when you were ready she would try again. My T never really fills in the blanks when I forget things, just kind of goes "You don't remember any of that?" *nods* and moves on to the next topic. I've remembered a lot more lately and she says it's because i'm in a "good place". Is it possible that you, like me, kind of shut down emotionally when things become overwhelming?